Motor-truck.



2 SHEETS-SHEEP 2 INVENTUB.

ASA FBATCHELDER.

fttil.

MOTOR-TRUCK.

Specification of Letters Patent.

Patented Dec. 17, 1907.

Apphtntieii lied May 28. 1906. Serial No. 319.1`1'i.

l5 dueed into the trucks as eomplete units entirel) independent ol' the true-li structure. Sui-.h arrangements. while satisfaetonv for ordinary street railway servie-got course inipose limitations which prevent tlte ohtaiiiing ol' the hest results as to simplicity, durahility and elleiene)r of the apparatus as a whole where the trueks are to he used for heavy servviee sue-h :is auxiliary local trall'ie on steam roads. f

rl`he oheet .ol' the present. invention is to preride a inotor trtteli wherein the eleetrieal and meehanieal features ol' the entire truck eoperate to produee a truek which is simple iu eonst'ruetion, durahle, and ol' maximum eleetrieal and inet-liauieal eapaeitt ln one ol'its aspects the present invention may he eonsidered as comprising n truek made up ol' a plurality of elet-trie, motors tied together into one unit and provided with wheels on the armature shafts. the armature shafts heilig the axles ol' the true-k.

'lhe present invention will he more fully understood and its` ohjeets and advantages l will he made more clearly apparent. from the 40 following detailed deseription taken in eolineetion with the aueompanving drawing, wherein Figure l is a plait viewnf n truekenilmttving the present invention in a preferred form;

Fi; is a side view of the lsaute; and Figs. 3

and t are,resperiiveiy.- 'longitudinal and ti'ansrerse-seetions of one nl' the motor frames.

lwI'erring to the drawings whieh Yillust rate for the motor. l'laeh of these. framesv is therel'oie preferably made in the form et' av rectangle having deep end walls :'i and (j and det-p side walls T and S. the lengilivol' the inotor frames heing equal to the. width of the tl'ul'k. The pole pieees tl and lt) project inwarillj.Y l'roin the side menihers T and and a v ohe lt of a width equal Lo the width of the. pole-piet'es and exciting coils Ja and t0" coniwets the tneinheis T and together at their upper edges, ln the meinhers mid (i of the 'motor frame are located jaws 12 and 13, re-

speetively, arranged to reeeive axle-hoxes 14. )have thesijaws are arranged sockets l5 and iti, respeetivelv, whit-h are adapted to receive eoil springs t7; these springs in turn resting tipoii the axle-hoxes. The axle-hoxes are -slidiiigly Iitted to the jaws iii the usual way; so that the motor frames are vieldingly supported upon the axle-boxes for movements u;- aud down within presi-,iihed limits.

vv'lhe. pole. fares of the. motors are preferahlfy arranged as shown in Patent No. 808,71?, granted ou Jan. '1, 19H6, on an a -plieation tiled h v ine., in order that the. po e.

pieees may iuove transversely of the. armatures. 'lhe motor armatures t8 und 1t) are mounted directly upon the. axles 2() and 2l, respei-tivel'v, and t tese. axles are journale-d iit lthe axle-boxes i4; the. drivers 3, 3, and #1, 4, heing preferably mounted upon the. aigles between the hoxes and the, motor armatures. These. motor units are. tied together h v means` of iop and hottom bars .212 and 3 respei'tivetv; the hars` being seeured to llaiiges ou the eiid members of the. motor frames which now eonstitiite. side portions ol' the truek frame. The. hars 2. preferably extend the. eut ire. length of the. truek,vwhile the. hars 23 inav terminate at the. jaws for rt-.eeiving the axie-hoxes. 'lhe motor frames are seeni'ed in sut-h positionswith respeetto eaeh other that space is left lxttwoeii the adjaeent side inetnhers of the. motor frames tor a holster .4 whieli nia he. of the forni usually employed ior hea\' irueits. The

Pfadjaeent sii es ol' the. motor fram-sA may or a four-wheel irurk. l and are a pair of inotors l'or operating the drivers It, it, and 4, LA respeetivelr. 'l`he motors are preferahl't' ol` the hi-polar type. is made so as to forni half ol' the ti'ill'k-l'rame 5 in addit ion to prmiding the. magnetic circuit.

The frame ol' eat-h niotoij:

'iitav not he used as traiisoins, lrtt I prefer vto provide `separate tansoui members 25 and EAL as illustrated. sint-e ther-hy the ennstru'tmu of the motor rinnev is sunphlied "Naud they ma) he made syuunet-rieal and east in a single pier-e. The hi,. lst,er 24 is :htntg from imls and .25 jL-uriialed in bear- 'fmgs St ou the transom members and bear whole which is of simple and durable consame time that the power and ellicieney of ings 30 on the motor frames. Braeing j pieces 3l and 3'. maj,7 bt. .cifurcd to the lower edges of the. motor [mines beneath the boli ster, in position lo bridge the space between the frauus, tliereb), further increasing the stillness of the structure. lf it is not desired to use a swing bolster it evident that this bolster may be omitted and the truck arranged in a well-known nninner to directly support the car body.

By making nach motor frame of a single casting a very stilll construction which is nor apt to be distorted under lateral stresses is se'cured, but it will of course be understood that the motor frames may be made up oi' i more than one piece if desired.

It will be seen that bv constructing and arranging the motor frames so as to forni the major portion of the mechanical l'iame of the truck, each part is ina-de to serve its own functions as a truck element or as a motor l element, as the case may be, While coperating with the remaining parts to form a l l l i i i l g struction and wherein the maximum elhciency which can be obtained within the prescribed liinits of space are secured, namely, the truck is mechanically strengthened at the the motors is increased. l

Although I have described in detail a preferred form of my invention, I do not desire to be limited to the details of construction shown and described, since, in its broader aspects, the invention may take va'ous other forms.

What I claim as new and desire to secure by Letters Patent of the United States, is

I. An electric truck comprising a plurality of meter field magnet frames having lengths approximately equal to the width of the l truck, means for rigidlyr connecting said frames together, journal boxes supported in said frames, motor armatures arranged onl shafts journaled in said bearings, and trael tion wheels oii said shafts.

2. An electric truck comprisingr a lpairof l motor field magnet frames having engthsi l. In an electric truck, a plurality of field magnet fi'aiiies, means for rigidly connecting said l'raines together, jaws ni opposite ends of said. frames; journal boxes slidingly mounted m said jaws, springs between the journal boxes and frames, axles mounted in bearings in said journal boxes, traction wheels on said axles, and armatures mounted on said axles in operative relation to the lield magnet frames.

5. An electric truck comprising a plurality of rectangular metal frames rigidly coniieeted together to forni a truck frame, pole pieces on said frames, motor armatures supported in operative relation 'to said pole pieces and having their shafts journaled in said frames, and traction wheels on said shafts.

6. An electric motor comprising a plurality of rectangular metal frames rigidly connected together to form a. truck frame, journal boxes yieldingly mounted in said frames,

axles having bearings in said journal boxes, motor armatures mounted on said axles in operative relation to said pole pieces, and traction wheels on said axles;

7. An electric truck-comprising a lurality of rectangular metal frames rigi ly connected together and each having jaws at opposite ends and spring sockets above the jaws, journal boxes seated in s aid' jaws, springs in said sockets'resting upon said journal boxes, axles having bearings in said journal boxes, pole pieces on said frames, motor armatures mounted onsaid axles in operative relation to said pole pieces, and traction Wheels on said axles.'

S. An electric truck comprising a plurality of rectangular metal, frames rigidly connected together and each having jaws atoppos'ite ends and spring sockets above tlie jaws,. journal boxes seated iny said jaws,

springs in said socket-s resting upon said journal boxes, axles mounted in said journal boxes, pole pieces on'said frames, motor armatures mounted on said axles in operative relation to the pole-pieces, and traction wheels rigidly secured to said axles between the journal boxes and the .fnotor armatures.

9. An electric truck comprising a plurality of rectangular metal ,frames rigidly eonnected together, each of said frames having pole iieces on o posite sides and a yoke located above said) pole pieces and connecting said sides together, motor armatures ar- 3. In au electric truckfa plurality of field l ranged in operative relation to said pole magnet frames having lengths equal to the i width of the truck, means ici' rigidly connecting said frames together, jaws in opposite ends of said fra-nies, journal boxes seated pieces and having their shafts' journaled iu saidfraines, and traction wheels. on said In an electric truck, a plurality ol' rec 125 in said jaws, motor armatures arranged in tangularl metal `frames, each frame having-A operative relation to said held frames and i having their shafts seated in bearings in said l inwardly-projecting pole pieces on its sides l and jaws in its ends, means lfor rigidly conjournal boxes, and traction wheels on said inenting saidfraines together to [o rin a truck i5 shafts.

aine, journal boxes slidingly mounted 511.130

jaws, s rings between said frames and said journ boxes, wheeled axles having bearings 1n said journal boxes, and motor i armatures carried by said axles in o .erative .relation-ta the pole pieces, said po e pieces being shaped to permit the armatures to vr'nove vertically with respect thereto` of rectangular metal frames, each frame havmg jaws in its ends and pole pieces projecting inwardly from its sides, together with a yoke connecting vsaid sides together above the pole-nieces, and top and bottom members -rigidlaconnected to corresponding ends of said rn j 13. A truck frame comprising a pair of lrectangular metal frames having jaws in the svago@ Y a ends thereof and pole pieces rejecting inwardly from the sides thereo tie-bars rigidly connecting corresponding ends of said frames together, and transoms rigidly connected to said tie-hars between said frames.

14, In an electric truck, a plurality of integral-rectangular metal-frames each having jaws in its ends and pole-pieces projecting in wardly from its sides, together with a yoke connecting said sides together above the poleieces, tie-bars rigidly connecting correspon( ing ends of said frames together, journal boxes yieldingly mounted in said jaws, axles having bearings in said journal boxes, wheels on said axles, and motor armatures carried by said axles in operative relation to the pole-pieces.

In witness whereof, I have hereunto se' my hand this 26th day of May', 1966.

ASA F. BATCHELDER.

Witnesses:

HELEN Osman,

G. C. Homan.. 

